﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp9
{
    class Mianji
    {
        public double Da(double a,double b)
        {
            return a * a * b;
        }
        public int Da(int a,int b)
        {
            return a * b;
         }
    }
}
